I have a very lengthy InDesign file created using Creative Suite 2 which file opens in InDesign 5.5 filed with spaces that can't be addressed in any way; e.g., using "Keep Options" or backspace or any relaxations of Master Pages, which don't even show up using the Page menu choice to begin with. Anyone know how to correct this without having to copy and past to a fresh CS 5.5 ID file?

Incidently, I'll add this fact. The ID CS2 file saves as CS5.5 without any distortions such as I've described. However, when I attempt to change that resulting saved text, huge white-space ellipsie immediately form.

I installed my ancient CS2 Indesign and when I attempt to open a file created seven years ago therewith I'm prompted that a variety of snap-ons are missing. I've copied screen shots of the prompts below. Where can I find these snap-ons? I only installed CS2 Indesign. If I'd have installed everything, would that have picked up the missing snap-ons? I'm posting this issue in this forum as an independent question. If you don't know the answer maybe Bob Levine will. The second image below is a scroll view from which I've only copied the top of the scroll.